Topology and magnetics optimisation for a 100-kW Bi-directional DC-DC Converter

James Scoltock; Gerardo Calderon-Lopez; Andrew J. Forsyth

doi:10.1109/VPPC.2017.8330900

Topology and magnetics optimisation for a 100-kW Bi-directional DC-DC Converter

James Scoltock, Gerardo Calderon-Lopez, Andrew J. Forsyth

The University of Manchester

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Modern applications of high-power DC-DC converters can be found in the renewable energy, energy storage, and automotive industries, where they are used for on-board power trains and rapid charging systems for Electric Vehicles (EV). This paper presents an investigation into the optimisation of a high-power bi-directional DC-DC interleaved converter suitable for high-performance EV applications. Three topologies are considered for comparison-the three- A nd four-phase interleaved converter with discrete inductors (3P-DI and 4P-DI), and the four-phase interleaved converter with three Interphase Transformers (4P-IPT). The different topologies are compared through a comprehensive multi-objective design optimisation procedure for a 100 kW 300-750 V case study. It is shown that the 4P-IPT offers lower volume and higher efficiency than the 3P-DI and 4P-DI across a wide range of switching frequencies, with reductions in weight of up to 50% being possible at low switching frequencies. It is then demonstrated that magnetic cores with higher temperature limits and lower gap losses may enable the discrete inductor topologies to be competitive with the 4P-IPT in terms of power density and efficiency.

Original language	English
Title of host publication	2017 IEEE Vehicle Power and Propulsion Conference, VPPC 2017 - Proceedings
Publisher	IEEE
Pages	1-6
Number of pages	6
Volume	2018-January
ISBN (Electronic)	9781538613177
DOIs	https://doi.org/10.1109/VPPC.2017.8330900
Publication status	Published - 3 Apr 2018
Event	14th IEEE Vehicle Power and Propulsion Conference, VPPC 2017 - Belfort, France Duration: 14 Dec 2017 → 17 Dec 2017

Conference

Conference	14th IEEE Vehicle Power and Propulsion Conference, VPPC 2017
Country/Territory	France
City	Belfort
Period	14/12/17 → 17/12/17

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/VPPC.2017.8330900

Cite this

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title = "Topology and magnetics optimisation for a 100-kW Bi-directional DC-DC Converter",

abstract = "Modern applications of high-power DC-DC converters can be found in the renewable energy, energy storage, and automotive industries, where they are used for on-board power trains and rapid charging systems for Electric Vehicles (EV). This paper presents an investigation into the optimisation of a high-power bi-directional DC-DC interleaved converter suitable for high-performance EV applications. Three topologies are considered for comparison-the three- A nd four-phase interleaved converter with discrete inductors (3P-DI and 4P-DI), and the four-phase interleaved converter with three Interphase Transformers (4P-IPT). The different topologies are compared through a comprehensive multi-objective design optimisation procedure for a 100 kW 300-750 V case study. It is shown that the 4P-IPT offers lower volume and higher efficiency than the 3P-DI and 4P-DI across a wide range of switching frequencies, with reductions in weight of up to 50% being possible at low switching frequencies. It is then demonstrated that magnetic cores with higher temperature limits and lower gap losses may enable the discrete inductor topologies to be competitive with the 4P-IPT in terms of power density and efficiency.",

author = "James Scoltock and Gerardo Calderon-Lopez and Forsyth, {Andrew J.}",

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doi = "10.1109/VPPC.2017.8330900",

language = "English",

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pages = "1--6",

booktitle = "2017 IEEE Vehicle Power and Propulsion Conference, VPPC 2017 - Proceedings",

publisher = "IEEE",

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note = "14th IEEE Vehicle Power and Propulsion Conference, VPPC 2017 ; Conference date: 14-12-2017 Through 17-12-2017",

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Scoltock, J, Calderon-Lopez, G & Forsyth, AJ 2018, Topology and magnetics optimisation for a 100-kW Bi-directional DC-DC Converter. in 2017 IEEE Vehicle Power and Propulsion Conference, VPPC 2017 - Proceedings. vol. 2018-January, IEEE, pp. 1-6, 14th IEEE Vehicle Power and Propulsion Conference, VPPC 2017, Belfort, France, 14/12/17. https://doi.org/10.1109/VPPC.2017.8330900

TY - GEN

T1 - Topology and magnetics optimisation for a 100-kW Bi-directional DC-DC Converter

AU - Scoltock, James

AU - Calderon-Lopez, Gerardo

AU - Forsyth, Andrew J.

PY - 2018/4/3

Y1 - 2018/4/3

N2 - Modern applications of high-power DC-DC converters can be found in the renewable energy, energy storage, and automotive industries, where they are used for on-board power trains and rapid charging systems for Electric Vehicles (EV). This paper presents an investigation into the optimisation of a high-power bi-directional DC-DC interleaved converter suitable for high-performance EV applications. Three topologies are considered for comparison-the three- A nd four-phase interleaved converter with discrete inductors (3P-DI and 4P-DI), and the four-phase interleaved converter with three Interphase Transformers (4P-IPT). The different topologies are compared through a comprehensive multi-objective design optimisation procedure for a 100 kW 300-750 V case study. It is shown that the 4P-IPT offers lower volume and higher efficiency than the 3P-DI and 4P-DI across a wide range of switching frequencies, with reductions in weight of up to 50% being possible at low switching frequencies. It is then demonstrated that magnetic cores with higher temperature limits and lower gap losses may enable the discrete inductor topologies to be competitive with the 4P-IPT in terms of power density and efficiency.

AB - Modern applications of high-power DC-DC converters can be found in the renewable energy, energy storage, and automotive industries, where they are used for on-board power trains and rapid charging systems for Electric Vehicles (EV). This paper presents an investigation into the optimisation of a high-power bi-directional DC-DC interleaved converter suitable for high-performance EV applications. Three topologies are considered for comparison-the three- A nd four-phase interleaved converter with discrete inductors (3P-DI and 4P-DI), and the four-phase interleaved converter with three Interphase Transformers (4P-IPT). The different topologies are compared through a comprehensive multi-objective design optimisation procedure for a 100 kW 300-750 V case study. It is shown that the 4P-IPT offers lower volume and higher efficiency than the 3P-DI and 4P-DI across a wide range of switching frequencies, with reductions in weight of up to 50% being possible at low switching frequencies. It is then demonstrated that magnetic cores with higher temperature limits and lower gap losses may enable the discrete inductor topologies to be competitive with the 4P-IPT in terms of power density and efficiency.

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DO - 10.1109/VPPC.2017.8330900

M3 - Conference contribution

AN - SCOPUS:85048869686

VL - 2018-January

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EP - 6

BT - 2017 IEEE Vehicle Power and Propulsion Conference, VPPC 2017 - Proceedings

PB - IEEE

T2 - 14th IEEE Vehicle Power and Propulsion Conference, VPPC 2017

Y2 - 14 December 2017 through 17 December 2017

ER -

Topology and magnetics optimisation for a 100-kW Bi-directional DC-DC Converter

Abstract

Conference

UN SDGs

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